/*
 * Copyright 2012 The Netty Project
 * 
 * The Netty Project licenses this file to you under the Apache License, version 2.0 (the "License"); you may not use
 * this file except in compliance with the License. You may obtain a copy of the License at:
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package com.phei.netty.basic;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;

import java.util.logging.Logger;

/**
 * @author lilinfeng
 * @date 2014年2月14日
 * @version 1.0
 */
public class TimeClientHandler extends ChannelHandlerAdapter {

	private static final Logger logger = Logger.getLogger(TimeClientHandler.class.getName());

	private final ByteBuf firstMessage;

	/**
	 * Creates a client-side handler.
	 */
	public TimeClientHandler() {
		byte[] req = "QUERY TIME ORDER".getBytes();
		firstMessage = Unpooled.buffer(req.length);
		firstMessage.writeBytes(req);

	}

	@Override
	public void channelActive(ChannelHandlerContext ctx) {
		ctx.writeAndFlush(firstMessage);
	}

	@Override
	public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
		ByteBuf buf = (ByteBuf) msg;
		byte[] req = new byte[buf.readableBytes()];
		buf.readBytes(req);
		String body = new String(req, "UTF-8");
		System.out.println("Now is : " + body);
	}

	@Override
	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
		// 释放资源
		logger.warning("Unexpected exception from downstream : " + cause.getMessage());
		ctx.close();
	}
}
